Extruded components for articles of footwear and methods of making the same

ABSTRACT

Extruded components for articles of footwear and methods of making such articles of footwear are disclosed. A carrier can be formed from a first material, the carrier including an attachment surface configured to attach to an upper and a receiving surface having a plurality of receptacles. A second material can be extruded into a plurality of the receptacles to form cushioning elements of a sole.

BACKGROUND

Field

The present disclosure relates to articles of footwear and methods ofmaking articles of footwear. More specifically, the present disclosurerelates to embodiments of footwear and components of footwear made fromextruded or dispensed materials.

Background

Individuals can be concerned with the amount of cushioning an article offootwear provides, as well as the aesthetic appeal of the article offootwear. This is true for articles of footwear worn for non-performanceactivities, such as a leisurely stroll, and for performance activities,such as running, because throughout the course of an average day, thefeet and legs of an individual are subjected to substantial impactforces. When an article of footwear contacts a surface, considerableforces may act on the article of footwear and, correspondingly, thewearer's foot. The sole functions, in part, to provide cushioning to thewearer's foot and to protect it from these forces. To achieve adequatecushioning, many footwear soles are thick and heavy. When sole sizeand/or weight are reduced to achieve other performance goals, protectionof the wearer's foot is often compromised.

The human foot is a complex and remarkable piece of machinery, capableof withstanding and dissipating many impact forces. The natural paddingof fat at the heel and forefoot, as well as the flexibility of the arch,help to cushion the foot. Although the human foot possesses naturalcushioning and rebounding characteristics, the foot alone is incapableof effectively overcoming many of the forces encountered during everyday activity. Unless an individual is wearing footwear that providesproper cushioning, support, and flexibility, the soreness and fatigueassociated with every day activity is more acute, and its onsetaccelerated. The discomfort for the wearer that results may diminish theincentive for further activity. Also, inadequate cushioning, support, orflexibility in an article of footwear can lead to injuries such asblisters; muscle, tendon and ligament damage; and bone stress fractures.Improper footwear can also lead to other ailments, including back pain.

BRIEF SUMMARY

A method of making a sole for an article of footwear can include forminga carrier from a first material. The carrier can include an attachmentsurface configured to attach to an upper and a receiving surface havinga plurality of receptacles. The method can further include extruding asecond material into a plurality of the receptacles. In certainembodiments, at least one receptacle can be formed as a cavity in thereceiving surface of the carrier. In certain embodiments, at least onereceptacle can be a protrusion extending from the receiving surface ofthe carrier. The protrusion can have a sidewall defining a rim and aninterior cavity.

In certain embodiments, the first material can be a thermoplastic orthermoset material, for example, but not limited to thermoplasticpolyurethane (TPU). In certain embodiments, the carrier can be formed byvacuum forming a TPU film. In certain embodiments, the first materialcan be ethylene-vinyl acetate (EVA). In certain embodiments, the firstmaterial can be nylon. In certain embodiments, the carrier can be formedby injecting the first material into a mold. In certain embodiments, thesecond material can be, for example, a two-part polyurethane, reactiveelastomer, or foam. In certain embodiments, the method can includecuring the second material, such as using a UV cure enhancement. Incertain embodiments, the method can include determining a pressureprofile of a foot, and the second material can be deposited into thereceptacles according to the pressure profile.

In certain embodiments, the second material can be extruded into thereceptacle until the second material reaches the rim of the receptacle.In certain embodiments, the second material can be extruded into thereceptacle until the second material is beyond the rim of thereceptacle. In certain embodiments, the first material and the secondmaterial can be different. In certain embodiments, two differentmaterials can be deposited into a single receptacle. In certainembodiments, a third material can be deposited into at least onereceptacle.

In certain embodiments, the carrier can have a forefoot region, amidfoot region, and a heel region. In certain embodiments, a receptaclein the heel region can have an interior volume greater than a receptaclein the midfoot region. In certain embodiments, a receptacle in themidfoot region can have an interior volume greater than a receptacle inthe forefoot region. In certain embodiments, a receptacle in the heelregion can have a rim that follows a rear contour of the heel region. Incertain embodiments, a majority of the receptacles can have a circularrim. The quantity and shape of the receptacles can vary for certainapplications. For example, in certain embodiments, the carrier can have10, 25, or 50 receptacles.

In certain embodiments, at least one receptacle can be formed as acavity in the receiving surface of the carrier. In certain embodiments,at least one receptacle can have a concave interior surface. The depthof the receptacle cavity can be configured to different depths dependingthe on the particular application. For example, in certain embodiments,a depth of the receptacle cavity can be at least 1, 5, or 10millimeters. In certain embodiments, at least one receptacle can share asidewall with an adjacent receptacle. In certain embodiments, at leastone receptacle can have a rectangular rim. In certain embodiments, atleast one receptacle can have a hexagonal rim. The receptacle can becircular, oval, triangular, organically shaped, or any other shape.

A method of making an article of footwear can include forming a carrierfrom a first material. In certain embodiments, the carrier can includean attachment surface configured to attach to an upper and a receivingsurface having a plurality of receptacles. In certain embodiments, asecond material can be extruded into a plurality of the receptacles. Incertain embodiments, the carrier can be attached to the upper. Incertain embodiments, the carrier can be attached to the upper by anadhesive. In certain embodiments, the attachment surface of the carriercan be concave and attached to a bottom surface of the upper. In certainembodiments, the attachment surface can have a sidewall configured tocontact an exterior surface of the upper.

An article of footwear can include an upper and a carrier attached tothe upper. In certain embodiments, the carrier can include an attachmentsurface configured to attach the carrier to the upper and a receivingsurface having a plurality of receptacles. In certain embodiments, aplurality of cushioning elements can be disposed in the receptacles. Incertain embodiments, at least one receptacle can include a protrusionextending from the receiving surface of the carrier. In certainembodiments, the protrusion can have a sidewall defining a rim and aninterior cavity. In certain embodiments, at least one cushioning elementcan extend beyond the rim of a protrusion. In certain embodiments, atleast one cushioning element can be an extruded material having adome-shaped exterior surface. In certain embodiments, the carrier can bea thermoplastic polyurethane (TPU) or ethylene-vinyl acetate (EVA) filmand at least one cushioning element can be a polyurethane elastomer orpolyurethane foam.

In certain embodiments, at least one cushioning element can be anextruded material. In certain embodiments, at least one cushioningelement can be an injected material. In certain embodiments, a materialof a first cushioning element can be different than a material of asecond cushioning element.

In certain embodiments, the carrier can have a forefoot region, amidfoot region, and a heel region. In certain embodiments, a receptaclein the heel region can have an interior volume greater than a receptaclein the midfoot region. In certain embodiments, a receptacle in themidfoot region can have an interior volume greater than a receptacle inthe forefoot region. In certain embodiments, a receptacle in the heelregion can have a rim that follows a rear contour of the heel region.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying figures, which are incorporated herein, form part ofthe specification and illustrate embodiments of the present disclosure.Together with the description, the figures further serve to explain theprinciples of and to enable a person skilled in the relevant arts tomake and use the disclosed embodiments. These figures are intended to beillustrative, not limiting. Although the disclosure is generallydescribed in the context of these embodiments, it should be understoodthat it is not intended to limit the scope of the disclosure to theseparticular embodiments. In the drawings, like reference numbers indicateidentical or functionally similar elements.

FIG. 1 illustrates a perspective view of an article of footwearaccording to an embodiment.

FIG. 2 illustrates a bottom perspective view of a sole for an article offootwear according to an embodiment.

FIG. 3 illustrates a bottom view of soles for articles of footwearaccording to an embodiment.

FIG. 4 illustrates a bottom perspective view of a carrier portion of asole for an article of footwear according to an embodiment.

FIG. 5 illustrates extrusion of a material into receptacles in a carrierportion of a sole for an article of footwear according to an embodiment.

FIG. 6 illustrates a bottom view of a sole for an article of footwearaccording to an embodiment.

FIG. 7A illustrates a bottom perspective view of an article of footwearaccording to an embodiment.

FIG. 7B illustrates extrusion of a material into receptacles of acarrier portion of a sole for an article of footwear according to anembodiment.

FIG. 8 illustrates a sole for an article of footwear according to anembodiment.

FIG. 9 illustrates a process for making an article of footwear accordingto an embodiment.

FIG. 10 illustrates a process for making an article of footwearaccording to an embodiment.

FIG. 11 illustrates a medial side perspective view of an article offootwear according to an embodiment.

FIG. 12 illustrates a bottom view of an article of footwear according toan embodiment.

FIG. 13 illustrates a lateral side perspective view of an article offootwear according to an embodiment.

FIG. 14 illustrates a rear view of an article of footwear according toan embodiment.

FIG. 15 illustrates a front view of an article of footwear according toan embodiment.

FIG. 16 illustrates a bottom view of a sole for an article of footwearaccording to an embodiment.

FIG. 17 illustrates a bottom view of a sole for an article of footwearaccording to an embodiment.

FIG. 18 illustrates a top perspective view of a sole for an article offootwear according to an embodiment.

FIG. 19 illustrates a bottom perspective view of a sole for an articleof footwear according to an embodiment.

FIG. 20 illustrates a bottom perspective view of a sole for an articleof footwear according to an embodiment.

FIG. 21 illustrates an article of footwear according to an embodiment.

FIG. 22 illustrates an article of footwear according to an embodiment.

FIG. 23A illustrates a cross-sectional view of a mold for a sole for anarticle of footwear according to an embodiment.

FIG. 23B illustrates a cross-sectional view of a sole for an article offootwear according to an embodiment.

FIG. 24 illustrates a cross-sectional view of an article of footwearaccording to an embodiment.

FIG. 25 illustrates a bottom perspective view of a sole for an articleof footwear according to an embodiment.

FIG. 26 illustrates a cross-sectional view of a sole for an article offootwear according to an embodiment.

FIG. 27 illustrates a bottom view of an article of footwear according toan embodiment.

FIGS. 28A-B illustrate a portion of a sole for an article of footwearaccording to an embodiment.

FIG. 29 illustrates a cross-sectional view of a sole for an article offootwear according to an embodiment.

FIG. 30 illustrates a sole for an article of footwear according to anembodiment.

FIG. 31 illustrates a side perspective view of a sole for an article offootwear according to an embodiment.

FIG. 32 illustrates a top perspective view of a sole for an article offootwear according to an embodiment.

FIGS. 33A-B illustrate a sole for an article of footwear according to anembodiment.

FIG. 34 illustrates a sole for an article of footwear according to anembodiment.

FIG. 35 illustrates an article of footwear according to an embodiment.

FIG. 36 illustrates an article of footwear according to an embodiment.

FIGS. 37A-B illustrate an article of footwear according to anembodiment.

FIG. 38 illustrates an article of footwear according to an embodiment.

FIG. 39 illustrates a perspective view of an article of footwearaccording to an embodiment.

FIG. 40 illustrates a perspective view of an article of footwearaccording to an embodiment.

FIG. 41 illustrates an article of footwear according to an embodiment.

FIG. 42 illustrates a perspective view of an article of footwearaccording to an embodiment.

DETAILED DESCRIPTION

Embodiments of the present disclosure will now be described in detailwith reference to embodiments thereof as illustrated in the accompanyingdrawings, in which like reference numerals are used to indicateidentical or functionally similar elements. References to “oneembodiment,” “an embodiment,” “some embodiments,” “in certainembodiments,” etc., indicate that the embodiment described may include aparticular feature, structure, or characteristic, but every embodimentmay not necessarily include the particular feature, structure, orcharacteristic. Moreover, such phrases are not necessarily referring tothe same embodiment. Further, when a particular feature, structure, orcharacteristic is described in connection with an embodiment, it issubmitted that it is within the knowledge of one skilled in the art toaffect such feature, structure, or characteristic in connection withother embodiments whether or not explicitly described.

It is understood that the term “sole” can refer to an entire sole for anarticle of footwear, or any portion of a sole for an article offootwear. For example, “sole” can refer to an outsole, midsole, insole,or any portion or combination thereof. “Sole” can refer to a forefootarea, midfoot area, or rearfoot area of a sole, or any portion orcombination thereof.

It is understood that while the term “extruded” is generally used hereinto refer to certain materials, these materials may also be “dispensed,”for example, dispensed from a mechanical device.

The following examples are illustrative, but not limiting, of thepresent disclosure. Other suitable modifications and adaptations of thevariety of conditions and parameters normally encountered in the field,and which would be apparent to those skilled in the art, are within thespirit and scope of the disclosure.

Embodiments described herein relate to articles of footwear, soles forarticles of footwear, and methods of making the same. In certainembodiments the sole can include a carrier portion having a receivingsurface with a plurality of receptacles. A second and/or third materialcan be extruded into the receptacles to form cushioning elements of thesole. The sole can be attached to an upper to form an article offootwear.

FIG. 1 illustrates an article of footwear 10 according to an embodiment.Article of footwear 10 can include an upper 20 having an exteriorsurface 201 and a sole 30. In certain embodiments, sole 30 can includecarrier 310 and cushioning elements 360. In certain embodiments, carrier310 can have an attachment surface 312, which can be configured toattach carrier 310 to upper 20. In certain embodiments, attachmentsurface 312 of carrier 310 can be concave such that it is contoured togenerally conform to the bottom of the wearer's foot or a midsole orbottom portion of an upper. In certain embodiments, carrier 310 can havesidewalls 314 which can contact exterior surface 201 of upper 20.Sidewall 314 can facilitate attaching sole 30 to upper 20. In certainembodiments an adhesive, stitching, tape, rivets, hook-and-loop, orother mechanical means or combinations thereof can be used to attachcarrier 310 to upper 20.

Carrier 310 can be formed by various processes, for example, by vacuumforming, compression molding, injection molding, dip molding, rotationalmolding, rapid prototyping, or additive manufacturing. Carrier 310 caninclude materials, for example, but not limited to polymers, rubbers,and/or foams. For example, carrier 310 can be made of thermoplasticpolyurethane (TPU) or ethylene-vinyl acetate (EVA). In certainembodiments, carrier 310 can be vacuum formed from a TPU film. Incertain embodiments, carrier 310 can be formed by injecting EVA into amold. Carrier 310 can be made from other suitable materials and can betransparent, opaque, or colored. In certain embodiments, carrier 310 canbe transparent such that the cushioning elements 360 within thereceptacles 322 can be seen through the exterior of carrier 310.Texturing, symbols, logos, indicia, and/or lettering can be included onan exterior surface of carrier 310, for example, on sidewall 314.

In certain embodiments, carrier 310 can include receiving surface 320,which can be configured to receive cushioning elements 360. In certainembodiments, receiving surface 320 can have one or more receptacles 322formed within receiving surface 320 or extending therefrom. Generally,receiving surface 320 can have a plurality of receptacles 322.Receptacles 322 can be configured to receive cushioning elements 360.Any number of receptacles 322 can be included as part of carrier 310,for example, 10, 20, 30, 40, or more receptacles 322. The receptacles322 can be various shapes and sizes and can be disposed in variouslocations and patterns along receiving surface 320 of carrier 310. Incertain embodiments, receptacles 322 can be disposed in rows across awidth of carrier 310 and/or in columns along a length of carrier 310.Configurations of receptacles 322 other than those specificallydescribed herein are contemplated. In certain embodiments, receptacles322 can be cavities in receiving surface 320 (see, for example, FIG.7A).

The shape of receptacles 322 can vary depending on the desiredfunctional and/or aesthetic characteristics. For example, receptacles322 can be circular, rectangular, square, or hexagonal shaped cavitiesin receiving surface 320, or organic free-form shapes. In certainembodiments, receptacles 322 can project from receiving surface 320 andhave a hollow interior space. In certain embodiments, receptacles 322can have a sidewall 324 and a rim 326. For example, in certainembodiments, a plurality of receptacles 322 can be cylindrical (i.e.,having a circular rim). In certain embodiments, receptacles 322 can be afree-form shape, for example, to follow a contour of a heel portion ofcarrier 310.

Cushioning elements 360 can be disposed in receptacles 322. As describedin further detail herein, in certain embodiments, a material can beextruded directly into receptacles 322 to form cushioning elements 360.In certain embodiments, cushioning elements 360 can be pre-fabricatedand inserted into receptacles 322 like a plug and maintained in place byfrictional or adhesive forces. In certain embodiments, cushioningelements 360 can act as an outsole. In certain embodiments, anadditional outsole material (not shown) can be disposed on some or allof cushioning elements 360.

FIG. 2 illustrates sole 30 according to an embodiment. In certainembodiments, sole 30 can include carrier 310 and cushioning elements360. As shown in FIG. 2, in certain embodiments, a plurality ofreceptacles 322 can extend from receiving surface 320 of carrier 310.Cushioning elements 360 can be disposed within a hollow interior volumeof receptacles 322. In certain embodiments, the material for cushioningelements 360 can be extruded into receptacles 322. In certainembodiments, an exterior surface 362 of cushioning elements 360 canextend beyond rim 326 of receptacles 322. Various shapes, sizes,patterns, and configurations of receptacles 322 are contemplated. Incertain embodiments, receptacles 322 can be generally cylindrical inshape and extend from receiving surface 320. In certain embodiments,receptacles 322 can be other shapes, for example, but not limited to,rectangular, square, triangular, hexagonal, or any other suitable shape.In certain embodiments, receptacles 322 can be spaced from each othersuch that each receptacle is a separate unit. In certain embodiments,receptacles 322 can be contiguous, i.e. sharing sidewalls 324 like ahoneycomb.

FIG. 3 illustrates left and right soles 30 according to embodiments. Incertain embodiments, in addition to receptacles 322, carrier 310 canhave cavities 328 in receiving surface 320. Cavities 328 can reduce theoverall amount of material used for carrier 310, and therefore reducethe weight of carrier 310. Cavities 328 can also be filled withadditional cushioning elements 360 if desired. Cavities 328 can bevarious shapes and sizes to fit between receptacles 322.

As shown, for example, in FIG. 3, the soles 30 can have a forefootregion 340, a midfoot region 342, and a heel region 344. Soles 30 canhave a medial side 346 and a lateral side 348. In certain embodiments,regions 340, 342, and 344 can each be about a one third of the length ofsole 30. However, each region can be larger or smaller than one third ofthe length of sole 30. In certain embodiments, the average size of thereceptacles 322 (and associated cushioning elements 360) in each region340, 342, and 344 can be different. For example, in certain embodiments,heel region 344 can have larger receptacles 322 than midfoot region 342,which in turn can have larger receptacles 322 than forefoot region 340.The size, shape, and pattern of receptacles 322 can be configured toprovide a different stability and cushioning profile to the sole 30. Forexample, a large receptacle 322 (and cushioning element 360) located inthe heel region 344 can provide additional cushioning for the wearer'sheel and a number of smaller receptacles 322 (and cushioning elements360) in the forefoot region 340 can provide flexibility and grip for thewearer's toes.

FIG. 4 illustrates carrier 310 according to an embodiment. In FIG. 4,carrier 310 is shown without any cushioning elements 360 disposed withinthe receptacles 322. As shown in FIG. 4, in certain embodiments,receptacles 322 can have an interior surface 323. In certainembodiments, interior surface 323 can be concave, such that thereceptacle 322 provides an interior volume into which material forcushioning elements 360 can be disposed. In certain embodiments,receptacles 322 can have a depth, for example, of approximately 1, 5,10, or 20 millimeters or more, measured from the plane of the rim 326 tothe deepest part of the receptacle 322. Additional cavities 328 can alsobe included in receiving surface 320 of carrier 310. Cavities 328 can bevarious shapes and sizes. In certain embodiments, internal cavity 328 ofa receptacle 322 can have an internal shape, for example, a convex dome,before the material for the cushioning element 360 is dispensed intoreceptacle 322.

As shown in FIG. 5, in certain embodiments, an extruder 400 can extrudematerial into receptacles 322 of carrier 310. In certain embodiments,movement of extruder 400 can be controlled by using computer-aideddesign (CAD) or other computer design software. In certain embodiments,computerized numerical control (CNC) can be used to control extruder 400(e.g., a three-axis pneumatic extruder) in order to precisely extrudematerial into receptacles 322. Variables such as, but not limited to,the size and shape of the dispensing orifice (i.e., extrusion die),dispensing pressure, dispensing temperature, dispensing viscosity,dispensing height, table axis, and table speed can be adjusted asdesired. In certain embodiments, a 6-axis machine can be used whendispensing material into receptacles 322.

In certain embodiments, carrier 310 can be placed on plate 404 duringthe extrusion process. In certain embodiments, extruder 400 and/or plate404 can move in a pre-designated pattern, for example, controlled by acomputer, such that material is extruded only into receptacles 322. Theextruder 400 can also be manually operated.

In certain embodiments, extruder 400 can include a nozzle 402 out ofwhich a heated or non-heated material, for example, polyurethaneelastomer or polyurethane foam can be extruded. In certain embodiments,the extruded material can exit the nozzle 402 in a liquid-like form andas it cools or cross-links, solidifies into cushioning elements 360. Incertain embodiments, as cushioning elements 360 cool or cross-link, thevolume expands. In certain embodiments, material can be extruded intoreceptacles 322 such that the material extends above the rim 326 of thereceptacle 322. In certain embodiments, surface tension can prevent theextruded material from overflowing. This can form cushioning elementswith a dome-shaped exterior surface 362. In certain embodiments, anadditional curing process can be used to set the material for cushioningelements 360. In certain embodiments, in their final state, cushioningelements 360 can have a spongy texture and feel to act as shockabsorbing material. In certain embodiments, cushioning elements 360 canbe made from a material durable enough to form part of an outsole forsole 30.

FIG. 6 illustrates sole 30 according to an embodiment. As depicted inFIG. 6, in certain embodiments, one or more elongated extruded members380 can be extruded onto sole 30. Extruded members 380 can provideadditional cushioning and/or support to sole 30. Various patterns ofcontinuous and non-continuous extruded members 380 can be extruded ontosole 30. For example, one or more extruded members 380 can be extrudedonto and/or between cushioning elements 360 and receptacles 322.Different patterns of extruded members 380 are contemplated, forexample, but not limited to those described in U.S. patent applicationSer. No. 14/455,650, filed Aug. 8, 2014, which is incorporated byreference herein in its entirety.

FIGS. 7A and 7B illustrate an article of footwear 10 according toembodiments. FIG. 7A illustrates carrier 310 without any materialextruded into receptacles 322. In the embodiment shown in FIG. 7A,receptacles 322 are formed as cavities in receiving surface 320. Eachcavity can have a rim 326 and a shared sidewall 324 with an adjacentreceptacle 322, forming a matrix of receptacles. Various shapes andsizes of receptacles 322 can be included in receiving surface 320. Incertain embodiments, receptacles 322 can be connected, for example, by ahole through a shared sidewall 324.

FIG. 7B illustrates cushioning elements 360 being extruded from nozzle402 into receptacles 322. As shown by the different shading of thecushioning elements 360A and 360B, in certain embodiments, differenttypes of material can be extruded into receptacles 322. For example,certain receptacles can be filled with a more dense material to providegreater stability. In certain embodiments, two different materials canbe extruded into the same receptacle 322. In certain embodiments,cushioning elements 360 of different receptacles 322 can be connected,for example through a hole in a shared sidewall 324 or by overflow ofthe extruded material over the sidewall 324. The pattern of material forcushioning elements 360 can be determined according to a generalpressure profile for wearers or it can be customized to a particularpressure profile of a wearer.

FIG. 8 illustrates a sole 30 according to an embodiment. As shown inFIG. 8, in certain embodiments, sole 30 can be made of a plurality ofseparate pieces. For example, sole 30 can include a forefoot region 340and a heel region 344, but not include a midfoot region. As shown inFIG. 8, in certain embodiments, carrier 310 can have a thickness, forexample, the thickness of sidewall 314. In certain embodiments,cushioning elements 360 can be extruded directly onto receiving surface320 of carrier 310. In certain embodiments, cushioning elements 360 canbe extruded into cavities or receptacles in the receiving surface 320 ofcarrier 310 and overflow such that cushioning elements 360 extend fromreceiving surface 320. In certain embodiments, receiving elements 360can be extruded such that adjacent cushioning elements 360 contact oneanother, for example, as shown in heel region 344.

FIG. 9 illustrates a method of making an article of footwear accordingto an embodiment. In step 500, a carrier can be formed from a firstmaterial. For example, a carrier can be vacuum formed from TPU film orEVA can be injected into a mold. In step 510, a second material can beextruded into receptacles of the carrier. The second material can formthe cushioning elements. In certain embodiments, the second material canbe extruded until it reaches a rim of the receptacles. In certainembodiments, the second material can be extruded beyond a rim of thereceptacles. In step 520, the second material can be cured, for example,to harden the second material that is extruded into the receptacles. Instep 530, a third material can be extruded onto the second material. Instep 540, the carrier can be attached to an upper, thereby forming anarticle of footwear. In certain embodiments, an adhesive can be used toattach the carrier with the upper. It is contemplated that not all ofthese steps are required for every embodiment. For example, in certainembodiments, the material for the cushioning elements may not need to becured or a third material may not be extruded onto the second material.The method can also be used only to make the sole for an article offootwear, i.e., by not including the step of attaching the carrier tothe upper.

FIG. 10 illustrates a method of making an article of footwear, accordingto an embodiment. This method can be used to make a customized sole fora particular wearer. In step 600, a pressure profile of a wearer's footcan be determined. For example, the wearer can step onto a pressuresensor that can determine how pressure is distributed across thewearer's feet when standing. This information can be analyzed by acomputer and used, for example, to determine a pattern for thereceptacles of the carrier and/or the type of material(s) to be extrudedinto the receptacles. In step 610, a carrier can be formed from a firstmaterial. In step 620, a second material can be extruded intoreceptacles of the carrier according to the pressure profile. In certainembodiments, a third material can be extruded into receptacles of thecarrier according to the pressure profile. In step 630, the secondmaterial can be cured, if needed. In step 640, the carrier can beattached to an upper, thereby forming an article of footwear.

FIG. 11 illustrates an article of footwear 10 according to anembodiment. Article of footwear 10 is shown disposed about a last 700.In certain embodiments, article of footwear 10 can include upper 20 andsole 30. In certain embodiments, upper 20 can include exoskeleton 710,which itself can be the structure of upper 20 or form a base layer forupper 20. In certain embodiments, exoskeleton 710 can have a pluralityof ribs 712 with spaces 714 therebetween. The ribs 712 can be similar ordifferent widths and can be disposed at various angles to formexoskeleton 710. In certain embodiments, spaces 714 between ribs 712 canbe smaller where more support is desired for that area of exoskeleton710, for example, in a heel portion of exoskeleton 710.

In certain embodiments, sole 30 can be coupled with exoskeleton 710 viawebbing 722. In certain embodiments, webbing 722 can extend from sole 30and interlace with exoskeleton 710. In certain embodiments, sole 30 canbe integrally formed with exoskeleton 710 or attached, for example, byan adhesive. In certain embodiments, sole 30 can include cups 720, whichcan be akin to the receptacles described herein. In certain embodiments,cups 720 can have an outer surface 724 and a rim 726. In certainembodiments, webbing 722 can couple outer surface 724 of cup 720 withexoskeleton 710.

FIG. 12 illustrates a bottom view of an article of footwear 10 accordingto an embodiment. Like other embodiments described herein, sole 30 caninclude a forefoot region 740, a midfoot region 742, and a heel region744. Like the receptacles described herein, cups 720 can be variousshapes and sizes and can be disposed in various locations and patterns.In certain embodiments, cups 720 can have a circular rim 726. In certainembodiments, cups 720 can have a free-form shape. In certainembodiments, cups 720 can have a concave interior surface 723, which canbe configured to receive extruded material that forms cushioningelements (not shown) as described with respect to other embodimentsherein.

In certain embodiments, cups 720 can include frame 730, which canprovide additional structure and support within cups 720. In certainembodiments, a portion of frame 730 can be similar in shape to rim 726of cup 720 and connected to rim 726 of cups 720 by branches. In certainembodiments, portions of the sole 30, for example, a midfoot region 742,can be without cups 720.

FIG. 13 illustrates a lateral side of an article of footwear 10according to an embodiment. In certain embodiments, exoskeleton 710 caninclude toe box 718. In certain embodiments, covering 750 can bedisposed over all or a portion of exoskeleton 710. Covering 750 can bethe same material as exoskeleton 710 or a different material. In certainembodiments, exoskeleton 710 and/or covering 750 can be formed by fuseddeposition modeling, or other additive manufacturing techniques.Additionally, exoskeleton 710 can be formed by more traditional moldingprocesses such as injection molding. Covering 750 can provide additionalstrength, structure, and geometric features to exoskeleton 710. Forexample, covering 750 can reinforce ribs 712. In certain embodiments,fabric can be disposed over exoskeleton 710 thereby forming an upper 20of the article of footwear 10.

FIG. 14 illustrates a rear or heel portion of an article of footwear 10according to an embodiment. In certain embodiments, the heel portion ofexoskeleton 710 can include a spine 716 running along a central portionof the heel. Spine 716 can provide support for the wearer's heel. Incertain embodiments, ribs 712 can extend from spine 716. In certainembodiments, covering 750 can be disposed onto exoskeleton 710 of theheel portion.

FIG. 15 illustrates a front or toe portion of an article of footwear 10according to an embodiment. In certain embodiments, toe box 718 can haveone or more holes 719 and/or spaces 717 between portions of toe box 718.The holes 719 can provide attachment points, for example, for fabricthat overlays exoskeleton 710 to form upper 20. In certain embodiments,toe box 718 can be solid piece of material without any holes. In certainembodiments, the material of toe box 718 can form an undulating pattern.

FIG. 16 illustrates a bottom view of a sole 80 for an article offootwear according to an embodiment. In certain embodiments, sole 80 caninclude a substrate 810 having an exterior surface 811. Substrate 810can be made from any suitable material, for example, but not limited to,textiles, fabric, synthetic material, foam, rubber, and/or plastic.

In certain embodiments, one or more windings 812 can be disposed onsubstrate 810. Winding 812 can be any suitable material. In certainembodiments, winding 812 can be a yarn or fabric (e.g., Cordura®). Incertain embodiments, winding 812 can be affixed to substrate 810 by anadhesive. In certain embodiments, winding 812 can be an extrudedmaterial (e.g., polyurethane elastomer or polyurethane foam). Forexample, winding 812 can be extruded in patterns as described in U.S.patent application Ser. No. 14/455,650, filed Aug. 8, 2014, which isincorporated by reference herein in its entirety. In certainembodiments, the extruded material can adhere to substrate 810 withoutany additional adhesive.

In one embodiment winding 812 is a continuous elongate member. Winding812 can be solid or hollow, such as a tube. Winding 812 can be a singlecontinuous member, or multiple windings 812 can be disposed on substrate810. In certain embodiments, winding 812 can be disposed in one or morelayers. The layers of winding 812 can form wells 814 of various shapesand sizes, which can provide structure and support to sole 80. Certainareas of sole 80 can have deeper wells 814 than other areas. Forexample, by adding layers of winding 812, a heel region of sole 80 canhave deeper wells 814 than a forefoot region.

In certain embodiments, cushioning elements 816 can be disposed withinwells 814. Cushioning elements 816 can form a midsole or outsole of sole80. In certain embodiments, cushioning elements 816 can be extruded intowells 814. Cushioning elements 816 can be the same material as winding812 or a different material. In certain embodiments, winding 812 and/orcushioning elements 816 can be a non-dispensed material. In certainembodiments, cushioning elements 816 can be a polyester-based orpolyether-based polyurethane elastomer or polyurethane foam. In certainembodiments, cushioning elements 816 can be thixotropic such that thematerial viscosity for cushioning elements 816 is lower when agitated ormixed for ease of extrusion, but will have increased viscosity onceextrusion or agitation is complete. In certain embodiments, anadditional layer of material can be disposed onto portions of winding812 and/or cushioning elements 816, for example, an outsole materialwith sufficient durability to engage a ground surface.

The embodiment shown in FIG. 16 has the benefit of producing sole 80without a mold. Thus, windings 812 can be customized for a particularwearer and then filled with material for cushioning elements 816, asdesired. In certain embodiments, winding 812 and/or cushioning elements816 can be foam or elastomer. In certain embodiments, winding 812 and/orcushioning elements 816 can be dispensed free-form (i.e., not onto asubstrate 810).

FIGS. 17 and 18 illustrate a sole 80 according to an embodiment. Asshown in the bottom view of FIG. 17, one or more winding 812, forexample, an extruded member, can be disposed on exterior surface 811 ofsubstrate 810. In certain embodiments, no substrate 810 is used and thewinding 812 and/or cushioning elements 816 are extruded onto a plate, anon-stick surface (e.g., polypropylene, Teflon, silicon, or a surfacesprayed with a release), or a textile. Layers of windings 812 can formwells 814 within which cushioning elements 816, for example, extrudedmaterial, can be disposed. In certain embodiments, an additional layerof material, for example, extruded member 818, can be disposed ontowinding 812 and/or cushioning elements 816.

FIG. 18 illustrates a top perspective view of sole 80 according to anembodiment. In certain embodiments, substrate 810 can have a sidewall824 around a periphery of sole 80. Sidewall 824 can facilitate couplingsole 80 with an upper to form an article of footwear. For example, anadhesive can be applied to sidewall 824 so that it can be affixed to theupper.

In certain embodiments, exterior surface 811 of substrate 810 can haveone or more grooves 822. In certain embodiments, windings 812 and/orcushioning elements 816 can be disposed in grooves 822. The grooves 822can be seen on the interior surface 820 of substrate 810 in FIG. 18 asraised portions (i.e., complement of the grooves 822 in the exteriorsurface 811). Portions of exterior surface 811 that are not the grooves822 appear as indentations 826 when viewed on interior surface 820.

FIGS. 19-22 illustrate a sole 85 and an article of footwear includingsole 85. In certain embodiments, a tray 860, for example a molded tray,can be disposed on a substrate 850. In certain embodiments, substrate850 can be a fabric or synthetic material. In certain embodiments, tray860 can have a plurality of receptacles 862. Receptacles 862 can beformed as cavities in tray 860.

In certain embodiments, tray 860 can have a plurality of channels 864,forming a plurality of cells 866. For example, tray 860 can havechannels 864 extending along a length and/or width of sole 85. Incertain embodiments, a plurality of cells 866 can include a receptacle862. As shown in the bottom perspective view of FIG. 20, in certainembodiments, cushioning elements 870 can be disposed in receptacles 862.In certain embodiments, cushioning elements 870 can be formed from anextruded material, for example, polyurethane elastomer and/orpolyurethane foam. In certain embodiments, cushioning elements 870 canextend beyond a rim 863 of receptacles 862.

In certain embodiments, a nub 872 can be disposed on one or morereceptacles 862. In certain embodiments, a plurality of nubs 872 can actas an outsole for sole 85. In certain embodiments, nub 872 can made froma material with sufficient durability to engage a ground surface. Incertain embodiments nub 872 can be an extruded material, for example,rubber, foam, polyurethane elastomer, or polyurethane foam.

As shown in FIGS. 21 and 22, in certain embodiments, sole 85 can becoupled with upper 86. In certain embodiments, upper 86 can be a bootiemade of, for example, fabric or foam. A side of substrate 850 oppositetray 860 can contact upper 86. In certain embodiments, an adhesive canbe used to couple substrate 850 with upper 86. In certain embodiments,one or more flaps 852 of substrate 850 can facilitate coupling sole 85with upper 86. For example, flaps 852 can be folded around upper 86. Incertain embodiments, flap 852 can be passed through slit 874 in upper86. In certain embodiments, flap 852 can be folded over and attached toitself to form loop 854 through which lace 876 can be threaded. Thecross-sectional view in FIG. 24 illustrates a cross-sectional view of anarticle of footwear according to an embodiment that includes sole 85.The folded loops 854 of flaps 852 are shown. FIG. 24 also illustrates asock liner 880, which can be disposed within an interior of the articleof footwear between the wearer's foot and sole 85.

FIG. 23A illustrates a cross-sectional view of a mold 840 that can beused to form sole 85 in an embodiment. For example, a material for tray860 can be dispensed into mold 840 and substrate 850 can be disposedthereupon. In certain embodiments, heat and/or compression can beapplied so that tray 860 adheres to substrate 850. Then, as shown in thecross-sectional view of FIG. 23B, in an embodiment, an extruder 400 canextrude cushioning elements 870 and/or nubs 872 into the receptacles 862of tray 860.

In an embodiment, substrate 850 can be placed over the receptacles 862of tray 860 and pressed into the concavities of the receptacles 862 toform a liner. Material for cushioning element 870, for example, foam,can then be extruded into the receptacles 862. As the materialcross-links, it can expand, securing the substrate 850 within thereceptacles 862 such that substrate 850 is disposed between the tray 860and cushioning elements 870.

FIG. 25 illustrates a sole according to an embodiment. FIG. 26illustrates a cross-section along line A-A in FIG. 25. In certainembodiments, a tray 890 can have a cavity into which a filler 892, forexample, a foam, is dispensed. In certain embodiments, the tray 890 andfiller 892 can be covered by substrate 850. In certain embodiments,cutouts 894 can be made through the substrate 850 and filler 892, forexample, by laser or die cutting. Cushioning elements 870 can beextruded into cutouts 894. A benefit of this embodiment is that airpockets in the filler 892 can facilitate adhesion of the extrudedcushioning elements 870 with the filler 892 as the extruded materialexpands into the air pockets.

FIG. 27 illustrates a bottom view of an article of footwear, including asole 85, according to an embodiment. In certain embodiments, flaps 852can form the upper for the article of footwear, for example, in aminimalist shoe. Flaps 852 can wrap around the wearer's foot and haveholes through which laces can be threaded to tie the shoe together.

In certain embodiments, a plurality of molded trays 860 can be disposedon substrate 850 of sole 85. Molded trays 860 can include clusters ofreceptacles 862 of various shapes and sizes, for example, in a row or atriangular pattern. Other configurations for molded trays 860 arecontemplated, including molded trays 860 with a single receptacle 862.

An embodiment of a molded tray 860 is illustrated in FIGS. 28A-B, with across-sectional view shown in FIG. 29. In certain embodiments, moldedtray 860 can have a plurality of receptacles 862 within which cushioningelements 870 can be disposed. In certain embodiments, molded tray 860can have a plurality of holes 861. In certain embodiments, a weld row868 can be disposed (e.g., extruded) along a periphery of molded tray860 to couple molded tray 860 with substrate 850. Holes 861 throughreceptacles 862 can also facilitate coupling molded tray 860 withsubstrate 850 when then cushioning elements 870 are extruded into moldedtray 860.

FIGS. 30-32 illustrate a sole 85 for an article of footwear according toan embodiment. In certain embodiments, substrate 850 can be, forexample, a molded foam material having a plurality of receptacles 862formed therein. Receptacles 862 can be various shapes and sizes. Incertain embodiments, substrate 850 can have notches 853 on medial and/orlateral sides, for example, in a midfoot region.

In certain embodiments, cushioning elements 870, for example extrudedmaterial, can be disposed in receptacles 862. In certain embodiments,nubs 872 can be disposed on cushioning elements 870. In certainembodiments, receptacles 862 with cushioning elements 870 can bedisposed in rows 871. In certain embodiments, the material forcushioning elements 870 can have a different density than the materialfor substrate 850. In certain embodiments, the extruded viscosity ofcushioning element 870 can be high to control the flow of the material.

FIGS. 33A-B and 34 illustrate soles 90 for an article of footwearaccording to embodiments. In certain embodiments, sole 90 can beextruded onto a substrate, for example, textiles or synthetic materials,as described herein. In certain embodiments, sole 90 can be extrudedonto a plate, a non-stick surface, or a textile, and upon curing,removed from the plate, non-stick surface, or textile without beingdisposed onto a substrate. FIG. 33A illustrates an embodiment of frame910 for sole 90. In certain embodiments, frame 910 can be an extrudedmember, for example, as described in U.S. patent application Ser. No.14/455,650, filed Aug. 8, 2014, which is incorporated by referenceherein in its entirety. In certain embodiments, frame 910 can be apolyurethane elastomer or a polyurethane foam. Frame 910 can be a singlecontinuous member (e.g., FIG. 33A) or include multiple members (e.g.,FIG. 34). For example, sole 90 can have a frame 910A for a heel region930 and a frame 910B for a forefoot region 940. In certain embodiments,medial and lateral sides of frame 910 can be spaced from each otheralong an interior portion of sole 90 (e.g., FIG. 34). In certainembodiments there can be a gap in a midfoot region between heel region930 and forefoot region 940. In certain embodiments, frame 910 caninclude multiple layers of extruded members.

In certain embodiments, frame 910 can have a plurality of loops 912.Loops 912 can be formed in various shapes and sizes. For example, incertain embodiments, at least one loop 912 in heel region 930 can belarger than a loop 912 in forefoot region 940. In certain embodiments,adjacent loops 912 can contact each other such that the loops 912 forman enclosed area. As shown, for example, in FIGS. 33B and 34, in certainembodiments, loops 912 can be filled with cushioning elements 920, forexample, extruded material. In certain embodiments, cushioning elements920 can be a polyurethane elastomer or a polyurethane foam. Frame 910and/or cushioning elements 920 can be made from other materials,including but not limited to rubber and foam. Frame 910 and cushioningelements 920 can be made from the same material or different materials.The enclosed loops 912 can limit the spreading of the material forcushioning elements 920 as the material is extruded into loops 912. Uponcuring, cushioning elements 920 can adhere to loops 912 of frame 910.

FIGS. 35 and 37A-B illustrate articles of footwear 9, according toembodiments. Article of footwear 9 can have features similar to otherembodiments described herein, for example, as shown in FIGS. 33A-B and34 and described above. For example, article of footwear 9 can bedispensed or extruded onto a substrate, for example, textiles orsynthetic materials, as described herein. In certain embodiments, sole90 can be extruded onto a plate, a non-stick surface, or a textile, andupon curing, removed from the plate, non-stick surface, or textilewithout being disposed onto a substrate. FIGS. 35 and 37A-B illustrateembodiments of article of footwear 9 having a sole 90 including frame910. In certain embodiments, frame 910 can be an extruded member, asdescribed herein. In certain embodiments, frame 910 can be apolyurethane elastomer or a polyurethane foam. Frame 910 can be a singlecontinuous member or can include multiple members. In certainembodiments, frame 910 can include multiple layers of extruded members.

In certain embodiments, frame 910 can have a plurality of loops 912.Loops 912 can be formed in various shapes and sizes. For example, incertain embodiments, at least one loop 912 in a heel region can belarger than a loop in a forefoot region. In certain embodiments,adjacent loops 912 can contact each other such that the loops 912 forman enclosed area. In certain embodiments, loops 912 can be filled withcushioning elements 920, for example, extruded material. FIG. 37Billustrates sole 90 with cushioning elements 920 and FIG. 37Aillustrates sole 90 prior to dispensing cushioning elements 920 intoloops 912, according to an embodiment. In certain embodiments,cushioning elements 920 can be a polyurethane elastomer or apolyurethane foam. Frame 910 and/or cushioning elements 920 can be madefrom other materials, including but not limited to rubber and foam.Frame 910 and cushioning elements 920 can be made from the same materialor different materials. The enclosed loops 912 can limit the spreadingof the material for cushioning elements 920 as the material is extrudedinto loops 912. Upon curing, cushioning elements 920 can adhere to loops912 of frame 910.

FIGS. 35 and 37A-B also illustrate embodiments of articles of footwear 9that include medial wing 950 and lateral wing 952. In certainembodiments, medial wing 950 and lateral wing 952 can be elongatemembers 954, for example, extruded members. In certain embodiments,medial wing 950 and lateral wing 952 can be a single, continuousextruded member. In certain embodiments, medial wing 950 and lateralwing 952 can be continuously extruded with frame 910 of sole 90. Incertain embodiments, elongated members 954 of medial wing 950 andlateral wing 952 can have generally flat interior and/or exteriorsurfaces.

Medial wing 950 and lateral wing 952 can be the same material or adifferent material than frame 910 of sole 90. In certain embodiments,medial wing 950 and lateral wing 952 can form a plurality of loops 958.In certain embodiments, one or more materials can be dispensed intospaces formed by loops 958 to provide additional structure to medialwing 950 and lateral wing 952.

In certain embodiments, medial wing 950 and lateral wing 952 can becoupled to sole 90 at one or more attachment point 956. In certainembodiments, an adhesive or mechanical method can be used to attachmedial wing 950 and lateral wing 952 with sole 90. In certainembodiments, medial wing 950 and lateral wing 952 can attach to sole 90,for example, as the extruded material cools or cross-links from aliquid-like form into a solid and adheres to sole 90, for example, toframe 910.

FIG. 36 illustrates article of footwear 9 disposed on a last 900,according to an embodiment. During manufacture, the frame 910, medialwing 950, and/or lateral wing 952 may be subjected to heat and pressurewhile the frame 910 is disposed on the last 900. In certain embodiments,medial wing 950 and lateral wing 952 can be folded such that they aredisposed as medial and lateral sides of article of footwear 9. Forexample, the free ends of medial wing 950 and lateral wing 952 notattached to sole 90 can be folded toward each other. As such, in certainembodiments, medial wing 950 and lateral wing 952 can form portions ofan upper of article of footwear 9. In certain embodiments, medial wing950 and lateral wing 952 can be disposed on or coupled to an upper ofthe article of footwear 9, made from, for example, fabric, mesh, orleather. Medial wing 950 and lateral wing 952 can be disposed over orunder the material for the upper. For example, article of footwear 9 canhave a material for an upper disposed between medial wing 950 andlateral wing 952 and last 900. In certain embodiments, one or more lace959 can couple medial wing 950 with lateral wing 952. For example, alace 959 can be disposed through one or more loops 958 of medial wing950 and/or lateral wing 952, such that the loops 958 can act as eyeletsfor the lace 959.

FIG. 38 illustrates an article of footwear 9 according to an embodiment.Article of footwear 9 can include the same or similar components asshown, for example, in FIG. 37B. In certain embodiments, article offootwear 9 can include medial wing 950 and lateral wing 952. FIG. 38also illustrates lace attachments 960 according to an embodiment. FIGS.39 and 40 illustrate an interior side and exterior side, respectively,of lateral wing 952 with lace attachments 960, according to anembodiment.

In certain embodiments, one or more lace attachments 960 can be coupledto medial wing 950 and/or lateral wing 952. Lace attachments 960 can beconfigured to receive a lace 959 to secure article of footwear 9 to awearer's foot. Lace attachments 960 can be made from, for example,metal, plastic, polyurethane elastomer, polyurethane foam, or any othersuitable material. In certain embodiments, lace attachment 960 can becoupled to an elongate member 954, for example, to a distal end of loop958. In certain embodiments, one or more hook 962 can be disposed aroundloop 958 to couple lace attachment 960 with loop 958. In certainembodiments, lace attachment 960 can have an exterior flat surface 966,as shown, for example, in FIG. 40. In certain embodiments, laceattachment 960 can include notch 968. In certain embodiments, laceattachment 960 can be switched such that flat surface 966 is disposed onthe interior side of loop 958 and hooks 962 are disposed on the exteriorside of loop 958. In certain embodiments, lace attachment 960 can have ahead portion 964 configured to receive a lace 959. In certainembodiments, head portion 964 can have an eyelet 965 through which thelace 959 can pass. By disposing lace attachments 960 on both medial wing950 and lateral wing 952, lace 959 can be threaded, for example, througheyelets 965, to secure article of footwear 9 to the wearer's foot. Inone embodiment, lace attachments 960 may be removably coupled to anelongate member 954 such that attachments may be replaced or changed(e.g., to a desired shape or color).

FIGS. 41 and 42 illustrate an article of footwear 9 according to anembodiment. Article of footwear 9 can include the same or similarcomponents as shown, for example, in FIG. 37B. In certain embodiments,article of footwear 9 can include medial wing 950 and lateral wing 952.In certain embodiments, medial wing 950 and lateral wing 952 can bedisposed or wrapped about an upper 20 made from, for example, fabric,mesh, or leather. FIGS. 41 and 42 also illustrate lace attachments 970according to an embodiment.

In certain embodiments, one or more lace attachments 970 can be coupledto medial wing 950 and/or lateral wing 952. Lace attachments 970 can beconfigured to receive a lace 959 to secure article of footwear 9 to awearer's foot. Lace attachments 970 can be made from, for example,fabric, mesh, plastic, woven materials, synthetic materials, or anyother suitable material. In certain embodiments, lace attachment 970 canbe coupled to an elongate member 954, for example, to a distal end ofloop 958. In certain embodiments, lace attachments 970 can include afirst loop 972 and a second loop 974. In certain embodiments, laceattachments 970 can be divided into first loop 972 and second loop 974by, for example, stitching 976 or by an adhesive or other mechanicalmethod of holding two sides of lace attachment 970 together. First loop972 and second loop 974 can be the same size or different sizes. Incertain embodiments, first loop 972 can be sized to fit snugly aboutelongated member 954. In certain embodiments, lace attachment 970 can bea single loop. In certain embodiments, lace attachment 970 can be amolded component. In certain embodiments, first loop 972 of laceattachment 970 can be coupled to loop 958 of medial wing 950 or lateralwing 952. In certain embodiments, second loop 974 can be configured toreceive lace 959, for example, where lace 959 is threaded through secondloop 974. By disposing lace attachments 970 on both medial wing 950 andlateral wing 952, lace 959 can be threaded through lace attachments 970to secure article of footwear 9 to the wearer's foot.

While various embodiments have been described herein, they have beenpresented by way of example only, and not limitation. It should beapparent that adaptations and modifications are intended to be withinthe meaning and range of equivalents of the disclosed embodiments, basedon the teaching and guidance presented herein. It therefore will beapparent to one skilled in the art that various changes in form anddetail can be made to the embodiments disclosed herein without departingfrom the spirit and scope of the present disclosure. The elements of theembodiments presented herein are not necessarily mutually exclusive, butmay be interchanged to meet various needs as would be appreciated by oneof skill in the art.

It is to be understood that the phraseology or terminology used hereinis for the purpose of description and not of limitation. The breadth andscope of the present disclosure should not be limited by any of theabove-described exemplary embodiments, but should be defined only inaccordance with the following claims and their equivalents.

What is claimed is:
 1. A method of making a sole for an article offootwear, the method comprising: extruding a continuous elongate windingonto a substrate, wherein the winding comprises a first material anddefines a plurality of receptacles devoid of the first material; andextruding a second material into a plurality of the receptacles, whereinthe second material forms a separate cushioning element of the sole ineach of the plurality of the receptacles, wherein the winding and thesecond material define at least a portion of the sole.
 2. The method ofclaim 1, wherein the winding comprises multiple layers in at least aheel portion of the sole.
 3. The method of claim 1, wherein the firstand second materials are non-ink, thixotropic materials.
 4. The methodof claim 1, wherein the first and second materials comprise apolyester-based urethane or polyether-based urethane.
 5. The method ofclaim 1, wherein the substrate comprises a fabric.
 6. The method ofclaim 1, wherein the winding is disposed in a groove on the substrate.7. A method of making an article of footwear, the method comprising:disposing a carrier onto a substrate, the carrier defining a shape of asole portion of the article of footwear, wherein the carrier comprisesreceptacles; and extruding a thixotropic material into a plurality ofthe receptacles, wherein the thixotropic material forms a separatecushioning element of the sole portion in each of the plurality of thereceptacles, wherein the carrier comprises one or more windings forminga frame.
 8. The method of claim 7, wherein disposing the carrier ontothe substrate comprises extruding a winding onto a non-stick surface. 9.The method of claim 7, wherein the windings are a different materialthan the cushioning elements.
 10. The method of claim 7, wherein thewindings are the same material as the cushioning elements.
 11. Themethod of claim 7, wherein the windings comprise more than one layer.12. The method of claim 7, further comprising extruding medial andlateral wings coupled to the frame.
 13. The method of claim 12, furthercomprising folding the medial and lateral wings toward each other toform a portion of an upper.
 14. The method of claim 12, furthercomprising coupling a plurality of lace attachments to the medial andlateral wings.